Waterproofing.



UNITE CHARLES D. BROWN, 0F AIVIES, IOWA.

WATERPROOFING.

To all whom it may concern:

Be it known that I, CHARLES D. BROWN, a citizen of the United States, residing at Ames, inthe county of Story and State of Iowa, have invented a new and useful WVaterproofing, of which the following is a specification.

This invention relates to a method of waterproofing surfaces to render them impervious to the attack of rust.

The object of the invention is, in a ready, cheap, practical and thoroughly feasible manner, to waterproof buildings, bridges, furnace pipes, tanks, and other objects in character requiring protection against moisture, the treatment being such as to render a second application of the compound practically unnecessary.

WVith the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in a novel method of waterproofing surfaces, as will be hereinafter fully described and claimed.

In carrying out the method, three steps are observed, which involve the employment of different materials and in different proportions. In following out. the first step, a hot solution is prepared from three parts of glucose, and one part of animal glue, suflicient water being employed to render the mixture easy to apply with a brush. After having been coated evenly upon the object, there is taken, as the second step, three parts of finely ground sand and one part of cement. These are thoroughly mixed in a dry Copies of this patent may be obtained Specification of Letters Patent.

Application filed March 2, 1911.

Patented Dec. 31, 1912. Serial No. 611,869.

condition and sifted over the wet surface. The final step consists in making a hot solution of one part glucose, one part animal glue and. one part water, and this is then applied to the sanded surface with an ordinary painters brush. The proportions of the ingredients is determined by weight. After the water has evaporated from the two mixtures, the mass will remain indefinitely in a soft condition, this being due to the presence of the glucose which renders the mass non-siccative, the glue acting as a binder to the sand and cement imparting a body and finish to the surface. In addition to its waterproofing qualities, the compound renders the object treated fire-proof to a marked degree.

I claim:

The herein described method of rendering surfaces waterproof which consists first in applying thereto a hot solution consisting of three parts of a non-siccative substance and one part of an adhesive, then sifting on the surface so treated a dry mixture consisting of three parts ground sand and one part cement, and finally applying to the sanded surface a hot solution consisting of one part of a non-siccative substance, one part of an adhesive, and one part water.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two Witnesses.

CHARLES D. BROWN. lVitnesses:

LEOLA TALBOTT, J. R. HARRIsON.

Washington, D. G. 

